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Título

Persistent natural acidification drives major distribution shifts in marine benthic ecosystems

AutorLinares, Cristina CSIC ORCID; Vidal, Montserrat; Canals, Miquel CSIC ORCID; Kersting, D. K.; Amblas, David; Aspillaga, Eneko CSIC ORCID ; Cebrian, Emma CSIC ORCID ; Delgado Huertas, Antonio CSIC ORCID ; Díaz Viñolas, David CSIC ORCID; Garrabou, Joaquim CSIC ORCID ; Hereu, Bernat; Navarro, Laura CSIC; Teixidó, Nuria CSIC ORCID; Ballesteros, Enric CSIC ORCID
Palabras claveOcean acidification
Climate change
CO2 vents
pH
Calcification
Fecha de publicación28-oct-2015
EditorRoyal Society (Great Britain)
CitaciónProceedings of the Royal Society of London B 282(1818): 20150587 (2015)
ResumenOcean acidification is receiving increasing attention because of its potential to affect marine ecosystems. Rare CO2 vents offer a unique opportunity to investigate the response of benthic ecosystems to acidification. However, the benthic habitats investigated so far are mainly found at very shallow water (less than or equal to 5 m depth) and therefore are not representative of the broad range of continental shelf habitats. Here, we show that a decrease from pH 8.1 to 7.9 observed in a CO2 vent system at 40 m depth leads to a dramatic shift in highly diverse and structurally complex habitats. Forests of the kelp Laminaria rodriguezii usually found at larger depths (greater than 65 m) replace the otherwise dominant habitats (i.e. coralligenous outcrops and rhodolith beds), which are mainly characterized by calcifying organisms. Only the aragonite-calcifying algae are able to survive in acidified waters, while high-magnesium-calcite organisms are almost completely absent. Although a long-term survey of the venting area would be necessary to fully understand the effects of the variability of pH and other carbonate parameters over the structure and functioning of the investigated mesophotic habitats, our results suggest that in addition of significant changes at species level, moderate ocean acidification may entail major shifts in the distribution and dominance of key benthic ecosystems at regional scale, which could have broad ecological and socio-economic implications.
Descripción7 páginas, 4 figuras.
Versión del editorhttp://dx.doi.org/10.1098/rspb.2015.0587
URIhttp://hdl.handle.net/10261/124988
DOI10.1098/rspb.2015.0587
ISSN0962-8452
ReferenciasLinares, Cristina; Vidal, Montserrat; Canals, Miquel; Kersting, D. K.; Amblas, David; Aspillaga, Eneko; Cebrian, Emma ; Delgado Huertas, Antonio; Díaz, David; Garrabou, Joaquim ; Hereu, Bernat; Navarro, Laura; Teixidó, Nuria; Ballesteros, Enric: (2015): Data from: Persistent natural acidification drives major distribution shifts in marine benthic ecosystems [Dataset]; Dryad; Version 1; https://doi.org/10.5061/dryad.0f7s7
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